<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        const list = [
            { id: '01', name: '张大大', pid: '', job: '项目经理' },
            { id: '02', name: '小亮', pid: '01', job: '产品leader' },
            { id: '03', name: '小美', pid: '01', job: 'UIleader' },
            { id: '04', name: '老马', pid: '01', job: '技术leader' },
            { id: '05', name: '老王', pid: '01', job: '测试leader' },
            { id: '06', name: '老李', pid: '01', job: '运维leader' },
            { id: '07', name: '小丽', pid: '02', job: '产品经理' },
            { id: '08', name: '大光', pid: '02', job: '产品经理' },
            { id: '09', name: '小高', pid: '03', job: 'UI设计师' },
            { id: '10', name: '小刘', pid: '04', job: '前端工程师' },
            { id: '11', name: '小华', pid: '04', job: '后端工程师' },
            { id: '12', name: '小李', pid: '04', job: '后端工程师' },
            { id: '13', name: '小赵', pid: '05', job: '测试工程师' },
            { id: '14', name: '小强', pid: '05', job: '测试工程师' },
            { id: '15', name: '小涛', pid: '06', job: '运维工程师' }
        ]

       
        const getTreeDateList = (list,resolove) =>{
            const newTreeDateList = []
        list.forEach(item=>{
            if( item.pid === resolove){
                const children = getTreeDateList(list,item.id)
                if(children.length){
                    item.children = children
                }
                newTreeDateList.push(item)
            }
        })
            return newTreeDateList
        }

        const res  = getTreeDateList(list,"")
        console.log(res)
    </script>
    
</body>

</html>